Cancer is the result of an improperly regulated cell cycle. Describe two reasons why cells can form tumors

Donde se encuentra el adn nuclear en un organismo eucariota?

Diagram of the evolution of land plants?

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?